39 results
Kerion
Raised, boggy lesion with heaped up purulent nodules 
Caused by host's response to a fungal ringworm
purulent nodules Caused ... fungal ringworm infection ... Lymphadenopathy Treatment ... Griseofulvin #Kerion #Dermatology ... #Diagnosis #Management
Hemophagocytic Lymphohistiocytosis (HLH)
Pathophysiology: Triggering factor (infection,...)→Activation of CD8 T cells (IFN-y) → Excessive activation of macrophages
Auto-amplification loop Diagnosis ... ↑ sIL-2R >2400 Ul ... Drugs, Unknown cause ... Treatment: • ... #management #treatment
Causes of Thrombocytosis - Differential Diagnosis Algorithm
Spurious:
 • Artifact (redo CBC)
Autonomous:
 • Essential thrombocytosis
 • Polycythemia
Causes of Thrombocytosis ... - Differential Diagnosis ... Myelofibrosis Infectious ... effect following treatment ... #Hematology
Myelodysplastic Syndrome (MD) - Diagnosis and Management Summary
myelo (marrow) -dys- (abnormal) -plastic (shape) = funny-shaped cells
old, ~10,000 new cases ... risk-stratification • Risks: infection ... only curative treatment ... #Management #treatment ... #hematology #oncology
Hordeolum vs Chalazion

Hordeolum (Stye):
 • Location: Most commonly found at or near an eyelash follicle
 •
eyelash follicle • Cause ... : Bacterial infection ... upper lid • Cause ... #Clinical #Diagnosis ... Chalazion #Comparison #Table
Causes of Extravascular and Intravascular Hemolysis - Differential Diagnosis Algorithm
Extravascular - Spleen and RES-mediated hemolysis
 -
Causes of Extravascular ... - Differential Diagnosis ... circulation - Infections ... #Algorithm #Causes ... #Hematology
Eosinophil Disorders Testing Algorithm
INDICATIONS FOR TESTING:
 • Peripheral blood eosinophilia/hypereosinophilia uncovered incidentally during medical evaluation or
for secondary causes ... drug reaction, infection ... glucocorticoid treatment ... #Differential #diagnosis ... #hematology #eosinophilia
Erythemas Summarized
Erythema ab igne
 • A dermatosis that results from repeated exposure to heat (fires, heating
potential inciting causes ... Haverhill fever caused ... Erythemas #comparison #table ... #differential #diagnosis ... #dermatology #compared
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
polymicrobial infection ... • Most common cause ... antibiotics once stable ... shows a small, stable ... #differential #causes
Chronic Lymphocytic Leukemia (CLL) - Summary
Overview: 
 • Most common leukemia in adults
 • Disorder of
minimal tumor burden Diagnosis ... cytometry → >500/uL ... Complications: 1) Infection ... Leukemia #oncology #hematology ... #hemeonc #diagnosis